Heating, Cooling and Compressing gases Flashcards
-State what happens to gases when they are heated, cooled or compressed.
1
Q
What happens to a gas when heated?
A
The gas expands.
2
Q
What happens if an egg was placed on top of a flask that was heated inside?
A
The air inside expands as it was heated and rushes out leaving fewer particles inside. There are more particles outside that move more vigorously putting pressure on the egg, so it falls into the flask. This is called air pressure.
3
Q
What is condensation?
A
Condensation is when a gas e.g. water vapour in your breath, turns into a liquid.
